According to the release criteria[1], the decision was made to slip the release of Fedora 13 by one week, to Tuesday 2010-05-25.

During composition of any further release candidates, the Fedora Release Engineering and Quality Assurance teams plan to be conservative in accepting fixes for the release, and will limit these to blocker items and critical fixes.

The Fedora 13 release schedule[2] has been updated to reflect the new release date. We regret any inconvenience to the community. Thank you for your patience as we try to ensure the best possible Fedora release.